Desperately seeking: Internet File transfer acceleration technology

What did you do Thanksgiving weekend? Me? I finally gave my new 1mpbs/8mbps (uplink/downlink) Internet service (Comcast Business Class) a stress test in hopes of proving that it will help me get the job done in terms of pumping raw DV video footage from my home office to CNET's headquarters in San Francisco as we take ZDNet's video experiment with Panasonic's P2-based AG-HVX200 to the next level. But sadly, the test turned into disappointment when, even with the 1 mbps uplink speed (uplink speed from the home office was the challenge), it was still, for some reason, taking approximately 8 hours to upload 16 minutes of DV video (4 GB) to a shared, high-bandwidth server.

So, I hear about file transfer acceleration technology all the time. Now, I'm ready to listen. Do you have the answer to our problem? If you think you do, we'd like to put a few promising solutions to the test. What are the risks if things go badly? What are the rewards if they go well? Ink. Here.